<template>
  <div class="main">
    <a-row class="main_content">
      <!-- 左边布局 -->
      <!-- <a-col
        :xs="{ span: 5, offset: 1 }"
        :lg="{ span: 8, offset: 3 }"
        :xl="{ span: 12, offset: 3 }"
        :md="{ span: 8, offset: 2 }"
      >
        <div class="left">
          <a-carousel autoplay>
            <div><img src="~@/assets/lunbo2.jpg"></div>
          </a-carousel>
        </div>
      </a-col> -->
      <!-- 登录窗口 -->
      <a-col
        :xs="{ span: 11, offset: 1 }"
        :lg="{ span: 8, offset: 8 }"
        :xl="{ span: 6, offset: 16 }"
        :md="{ span: 10, offset: 1 }"
      >
        <a-form
          id="formLogin"
          class="user-layout-login"
          ref="formLogin"
          :form="form"
          @submit="handleSubmit"
        >
          <a-tabs
            :activeKey="customActiveKey"
            :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
            @change="handleTabClick"
          >
            <a-tab-pane key="tab1" tab="账号密码登录">
              <a-alert
                v-if="isLoginError"
                type="error"
                showIcon
                style="margin-bottom: 24px;"
                message="登录异常"
              />
              <a-form-item>
                <a-input
                  size="large"
                  type="text"
                  placeholder="账户"
                  v-decorator="[
                'username',
                {rules: [{ required: true, message: '请输入账号' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
                >
                  <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }" />
                </a-input>
              </a-form-item>

              <a-form-item>
                <a-input
                  size="large"
                  type="password"
                  autocomplete="false"
                  placeholder="密码"
                  v-decorator="[
                'password',
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
                >
                  <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }" />
                </a-input>
              </a-form-item>
            </a-tab-pane>
            <!--<a-tab-pane key="tab2" tab="手机号登录">
          <a-form-item>
            <a-input size="large" type="text" placeholder="手机号" v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]">
              <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input size="large" type="text" placeholder="验证码" v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
            </a-tab-pane>-->
          </a-tabs>

          <a-form-item>
            <a-checkbox v-decorator="['rememberMe']">自动登录</a-checkbox>
            <router-link
              :to="{ name: 'recover', params: { user: 'aaa'} }"
              class="forge-password"
              style="float: right;"
            >忘记密码</router-link>
          </a-form-item>

          <a-form-item style="margin-top:24px">
            <a-button
              size="large"
              type="primary"
              htmlType="submit"
              class="login-button"
              :loading="state.loginBtn"
              :disabled="state.loginBtn"
            >确定</a-button>
          </a-form-item>

          <div class="user-login-other">
            <span>其他登录方式</span>
            <a>
              <a-icon class="item-icon" type="alipay-circle"></a-icon>
            </a>
            <a>
              <a-icon class="item-icon" type="taobao-circle"></a-icon>
            </a>
            <a>
              <a-icon class="item-icon" type="weibo-circle"></a-icon>
            </a>
            <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
          </div>
        </a-form>

        <two-step-captcha
          v-if="requiredTwoStepCaptcha"
          :visible="stepCaptchaVisible"
          @success="stepCaptchaSuccess"
          @cancel="stepCaptchaCancel"
        ></two-step-captcha>
      </a-col>
    </a-row>
    <a-row>
      <a-col :lg="{ span: 18, offset: 3 }">
        <div class="content">
          <!-- <h1>合作案例</h1> -->
          <a-row type="flex" justify="space-around">
            <a-col :span="6">
              <div class="demo">
                <h2>支付即积分</h2>
                <img src="~@/assets/jifen.jpg">
                <p>支付即积分</p>
              </div>
            </a-col>
            <a-col :span="6">
              <div class="demo">
                <h2>电商收付通</h2>
                <img src="~@/assets/zhifu.jpg">
                <p>提供安全可靠的电商收付</p>
              </div>
            </a-col>
            <a-col :span="6">
              <div class="demo">
                <h2>分账</h2>
                <img src="~@/assets/money.jpg">
                <p>发送分账指令解冻资金分账</p>
              </div>
            </a-col>
          </a-row>
        </div>
      </a-col>
    </a-row>
  </div>
</template>

<script>
  import md5 from 'md5'
  import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha'
  import { mapActions } from 'vuex'
  import { timeFix } from '@/utils/util'
  import { getSmsCaptcha, get2step } from '@/api/login'

  export default {
    components: {
      TwoStepCaptcha,
    },
    data() {
      return {
        customActiveKey: 'tab1',
        loginBtn: false,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        isLoginError: false,
        requiredTwoStepCaptcha: false,
        stepCaptchaVisible: false,
        form: this.$form.createForm(this),
        state: {
          time: 60,
          loginBtn: false,
          // login type: 0 email, 1 username, 2 telephone
          loginType: 0,
          smsSendBtn: false,
        },
      }
    },
    created() {
      /*get2step({ })
        .then(res => {
          this.requiredTwoStepCaptcha = res.result.stepCode
        })
        .catch(() => {
          this.requiredTwoStepCaptcha = false
        })*/
      // this.requiredTwoStepCaptcha = true
    },
    methods: {
      ...mapActions(['Login', 'Logout']),
      // handler
      handleUsernameOrEmail(rule, value, callback) {
        const { state } = this
        const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
        if (regex.test(value)) {
          state.loginType = 0
        } else {
          state.loginType = 1
        }
        callback()
      },
      handleTabClick(key) {
        this.customActiveKey = key
        // this.form.resetFields()
      },
      handleSubmit(e) {
        e.preventDefault()
        const {
          form: { validateFields },
          state,
          customActiveKey,
          Login,
        } = this

        state.loginBtn = true

        const validateFieldsKey = customActiveKey === 'tab1' ? ['username', 'password'] : ['mobile', 'captcha']

        validateFields(validateFieldsKey, { force: true }, (err, values) => {
          if (!err) {
            const loginParams = { ...values }
            delete loginParams.username
            loginParams[!state.loginType ? 'email' : 'username'] = values.username
            loginParams.password = values.password
            Login(loginParams)
              .then((res) => this.loginSuccess(res))
              .catch((err) => this.requestFailed(err))
              .finally(() => {
                state.loginBtn = false
              })
          } else {
            setTimeout(() => {
              state.loginBtn = false
            }, 600)
          }
        })
      },
      getCaptcha(e) {
        e.preventDefault()
        const {
          form: { validateFields },
          state,
        } = this

        validateFields(['mobile'], { force: true }, (err, values) => {
          if (!err) {
            state.smsSendBtn = true

            const interval = window.setInterval(() => {
              if (state.time-- <= 0) {
                state.time = 60
                state.smsSendBtn = false
                window.clearInterval(interval)
              }
            }, 1000)

            const hide = this.$message.loading('验证码发送中..', 0)
            getSmsCaptcha({ mobile: values.mobile })
              .then((res) => {
                setTimeout(hide, 2500)
                this.$notification['success']({
                  message: '提示',
                  description: '验证码获取成功，您的验证码为：' + res.result.captcha,
                  duration: 8,
                })
              })
              .catch((err) => {
                setTimeout(hide, 1)
                clearInterval(interval)
                state.time = 60
                state.smsSendBtn = false
                this.requestFailed(err)
              })
          }
        })
      },
      stepCaptchaSuccess() {
        this.loginSuccess()
      },
      stepCaptchaCancel() {
        this.Logout().then(() => {
          this.loginBtn = false
          this.stepCaptchaVisible = false
        })
      },
      loginSuccess(res) {
        // check res.homePage define, set $router.push name res.homePage
        // Why not enter onComplete
        /*
        this.$router.push({ name: 'analysis' }, () => {
          console.log('onComplete')
          this.$notification.success({
            message: '欢迎',
            description: `${timeFix()}，欢迎回来`
          })
        })
        */
        this.$router.push({ path: '/' })
        // 延迟 1 秒显示欢迎信息
        setTimeout(() => {
          this.$notification.success({
            message: '欢迎',
            description: `${timeFix()}，欢迎回来`,
          })
        }, 1000)
        this.isLoginError = false
      },
      requestFailed(err) {
        this.isLoginError = true
        // this.$notification['error']({
        //   message: '错误',
        //   description: err.message || '请求出现错误，请稍后再试',
        //   duration: 4
        // })
      },
    },
  }
</script>

<style lang="less" scoped>
  .main_content.ant-row{
    background: url("~@/assets/login_background.jpg");
    height: 600px;
  }
  .left {
    img {
      width: 100%;
    }
    .ant-carousel .slick-slide {
      text-align: center;
      height: 160px;
      line-height: 160px;
      background: #364d79;
      overflow: hidden;
    }

    .ant-carousel .slick-slide h3 {
      color: #fff;
    }
  }
  .content {
    margin: 80px 0px;

    .demo{
      border: 1px solid #DEDEDE;
      text-align: center;
      border-radius: 3%;
      h2{
        padding-top: 15px;
        font-size: 16px;
      }
      p{
        font-size: 14px;
        margin-top: 10px;
      }
      img{
        width:50%
      }
    }
    .demo:hover{
      box-shadow: 0px 0px 5px #333;
      transition: all 0.5s;
    }
  }
  .user-layout-login {
    border: 1px solid #DEDEDE;
    border-radius: 5%;
    padding: 20px;
    background: rgba(255, 255, 255, 0.7);
    margin-top: 100px;
    label {
      font-size: 14px;
    }

    .getCaptcha {
      display: block;
      width: 100%;
      height: 40px;
    }

    .forge-password {
      font-size: 14px;
    }

    button.login-button {
      padding: 0 15px;
      font-size: 16px;
      height: 40px;
      width: 100%;
    }

    .user-login-other {
      text-align: left;
      margin-top: 24px;
      line-height: 22px;

      .item-icon {
        font-size: 24px;
        color: rgba(0, 0, 0, 0.2);
        margin-left: 16px;
        vertical-align: middle;
        cursor: pointer;
        transition: color 0.3s;

        &:hover {
          color: #1890ff;
        }
      }

      .register {
        float: right;
      }
    }
  }
</style>
